From 2adb43a97b30ddd30e5c03c485725b1b3241e2eb Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Wed, 28 Aug 2019 19:20:44 -0700
Subject: pin nixpkgs

---
 default.nix | 15 +++++++++++++++
 install.sh  | 10 ++++++----
 nixpkgs.nix |  5 +++++
 3 files changed, 26 insertions(+), 4 deletions(-)
 create mode 100644 default.nix
 create mode 100644 nixpkgs.nix

diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..74f0940
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,15 @@
+let
+  nixpkgs = builtins.fetchTarball (import ./nixpkgs.nix);
+  pkgs = import "${nixpkgs}" {};
+in
+rec {
+  home-manager = pkgs.callPackage ./home-manager/home-manager {
+    path = toString ./home-manager;
+  };
+
+  install = pkgs.callPackage ./home-manager/home-manager/install.nix {
+    inherit home-manager;
+  };
+
+  nixos = import ./home-manager/nixos;
+}
diff --git a/install.sh b/install.sh
index c6b9c35..1e8d2a9 100755
--- a/install.sh
+++ b/install.sh
@@ -9,18 +9,20 @@ NIXDIR="$HOME/.config/nixpkgs"
 HOMEFILE="$NIXDIR/home.nix"
 NIXFILE="$(pwd)/$1"
 #
+#
 [[ -e "$HOMEFILE" ]] || ln -s "$NIXFILE" "$HOMEFILE"
 [[ -e "$NIXDIR/config.nix" ]] || ln -s "$(pwd)/lib/config.nix" "$NIXDIR/config.nix"
 #
-# The notmuch config location is by default ~/.notmuch-config, but home-manager
+# the notmuch config location is by default ~/.notmuch-config, but home-manager
 # puts it at ~/.config/notmuch/notmuchrc (which makes sense) and then sets
-# NOTMUCH_CONFIG. However, if a program for some reason doesn't read
+# NOTMUCH_CONFIG. however, if a program for some reason doesn't read
 # NOTMUCH_CONFIG (emacs), then it won't find the right config file, so I
 # override with a symlink.
 #
 mkdir -p ~/.config/notmuch
 [[ -e ~/.notmuch-config ]] || ln -s ~/.config/notmuch/notmuchrc ~/.notmuch-config
 #
-# Symlinking must occur before initial generation
+# symlinking must occur before initial generation. now we can install, and
+# pin our own nixpkgs.
 #
-nix-shell ./home-manager -A install
+nix-shell ./default.nix -A install
diff --git a/nixpkgs.nix b/nixpkgs.nix
new file mode 100644
index 0000000..44d9065
--- /dev/null
+++ b/nixpkgs.nix
@@ -0,0 +1,5 @@
+# Get the sha256 with: nix-prefetch-url --unpack ${url}
+{
+  url = "https://github.com/NixOS/nixpkgs/archive/a59b6608f97a37761e0d516d22074c91f937d0f3.tar.gz";
+  sha256 = "0i92z4rx7f9wy285mzr3kipj7hn400xvpdayzkylkhld1yclm67q";
+}
-- 
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